2749653679 has 4 divisors (see below), whose sum is σ = 2751359976. Its totient is φ = 2747947384.

The previous prime is 2749653671. The next prime is 2749653719. The reversal of 2749653679 is 9763569472.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2749653679 - 2³ = 2749653671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2749653671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 850729 + ... + 853954.

It is an arithmetic number, because the mean of its divisors is an integer number (687839994).

Almost surely, 2^2749653679 is an apocalyptic number.

2749653679 is a deficient number, since it is larger than the sum of its proper divisors (1706297).

2749653679 is a wasteful number, since it uses less digits than its factorization.

2749653679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706296.

The product of its digits is 17146080, while the sum is 58.

The square root of 2749653679 is about 52437.1402633668. The cubic root of 2749653679 is about 1400.9608504306.

The spelling of 2749653679 in words is "two billion, seven hundred forty-nine million, six hundred fifty-three thousand, six hundred seventy-nine".